Definition of reef:
- A chain or range of rocks lying at or near the surface of the water. See Coral reefs, under Coral.
- A large vein of auriferous quartz; - so called in Australia. Hence, any body of rock yielding valuable ore.
- That part of a sail which is taken in or let out by means of the reef points, in order to adapt the size of the sail to the force of the wind.
- To reduce the extent of ( as a sail) by roiling or folding a certain portion of it and making it fast to the yard or spar.
- "Autobiography and Selected Essays", Thomas Henry Huxley.
- "A Voyage Towards the South Pole and Round the World, Volume 1", James Cook.
- "The Players", Everett B. Cole.